Looking for a 7984 valve

[Peter Percival]

I'm thinking of making
http://www.arrl.org/files/file/QST/This%20Month%20in%20QST/August%202014/JULSTROM.pdf.
Any thoughts about where I can get the 7984 valve?
--
"He who will not reason is a bigot;
he who cannot is a fool;
he who dares not is a slave."
- Sir William Drummond

 

[Ralph Mowery]

In article <qgnvo7$u68$1@news.albasani.net>, peterxpercival@hotmail.com
says...

I'm thinking of making
http://www.arrl.org/files/file/QST/This%20Month%20in%20QST/August%202014/JULSTROM.pdf.
Any thoughts about where I can get the 7984 valve?
--

It may be easier to subistute in a TV sweep tube that has the plate cap
at the top of the tube. Just find one that the plate dissapation is
close to the 7984.

 

On Wed, 17 Jul 2019 21:17:12 +0100, Peter Percival
<peterxpercival@hotmail.com> wrote:

I'm thinking of making
http://www.arrl.org/files/file/QST/This%20Month%20in%20QST/August%202014/JULSTROM.pdf.
Any thoughts about where I can get the 7984 valve?

I found one on ebay for about 4 bucks plus about the same for
shipping. Then looking further found another 17 sellers of that tube
on ebay.
Eric